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https://www.readbyqxmd.com/read/29793152/identification-of-seven-polyamine-oxidase-genes-in-tomato-solanum-lycopersicum-l-and-their-expression-profiles-under-physiological-and-various-stress-conditions
#1
Yanwei Hao, Binbin Huang, Dongyu Jia, Taylor Mann, Xinyi Jiang, Yuxing Qiu, Masaru Niitsu, Thomas Berberich, Tomonobu Kusano, Taibo Liu
Polyamines (PAs) are implicated in developmental processes and stress responses of plants. Polyamine oxidases (PAOs), flavin adenine dinucleotide-dependent enzymes that function in PA catabolism, play a critical role. Even though PAO gene families of Arabidopsis and rice have been intensely characterized and their expression in response to developmental and environmental changes has been investigated, little is known about PAOs in tomato (Solanum lycopersicum). We found seven PAO genes in S. lycopersicum and named them SlPAO1∼7...
May 15, 2018: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29792950/transcriptome-profile-analysis-reveals-the-ontogenesis-of-rooted-chichi-in-ginkgo-biloba-l
#2
Xiaojing Liu, Limin Sun, Qikui Wu, Xiaoyan Men, Linmei Yao, Shiyan Xing
The Ginkgo biloba L. chichi is a unique organ. To explore the molecular mechanisms underlying the ontogenesis of G. biloba chichi, we used RNA-seq to analyse the transcriptome profile of rooted chichi at two developmental stages (ch1 and ch2) and nearby tissues (ck), and each sample had three biological replicates. A total of 57.74 Gb of clean bases were generated in nine cDNA libraries. These bases were de novo assembled into 68,277 unigenes with average length of 844 bp, and 51.47% of the unigenes had a match in at least one public database...
May 21, 2018: Gene
https://www.readbyqxmd.com/read/29792308/logical-modelling-uncovers-developmental-constraints-for-primary-sex-determination-of-chicken-gonads
#3
Lucas Sánchez, Claudine Chaouiya
In the chicken, sex determination relies on a ZZ (male)/ZW (female) chromosomal system, but underlying mechanisms are still not fully understood. The Z-dosage and the dominant W-chromosome hypotheses have been proposed to underlie primary sex determination. We present a modelling approach, which assembles the current knowledge and permits exploration of the regulation of this process in chickens. Relying on published experimental data, we assembled a gene network, which led to a logical model that integrates both the Z-dosage and dominant W hypotheses...
May 2018: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/29792229/characterization-of-medle-1-a-protein-in-early-development-of-cryptosporidium-parvum
#4
Jilan Fei, Haizhen Wu, Jiayuan Su, Chanchan Jin, Na Li, Yaqiong Guo, Yaoyu Feng, Lihua Xiao
BACKGROUND: Cryptosporidium spp. are important diarrhea-causing pathogens in humans and animals. Comparative genomic analysis indicated that Cryptosporidium-specific MEDLE family proteins may contribute to host adaptation of Cryptosporidium spp., and a recent study of one member of this family, CpMEDLE-2 encoded by cgd5_4590, has provided evidence supporting this hypothesis. In this study, another member of the protein family, CpMEDLE-1 of Cryptosporidium parvum encoded by cgd5_4580, which is distinct from CpMEDLE-2 and has no signature motif MEDLE, was cloned, expressed and characterized to understand its function...
May 23, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29792165/molecular-characterization-and-differential-expression-suggested-diverse-functions-of-p-type-ii-ca-2-atpases-in-triticum-aestivum-l
#5
Mehak Taneja, Santosh Kumar Upadhyay
BACKGROUND: Plant P-type II Ca2+ ATPases are formed by two distinct groups of proteins (ACAs and ECAs) that perform pumping of Ca2+ outside the cytoplasm during homeostasis, and play vital functions during development and stress management. In the present study, we have performed identification and characterisation of P-type II Ca 2+ ATPase gene family in an important crop plant Triticum aestivum. RESULTS: Herein, a total of 33 TaACA and 9 TaECA proteins were identified from the various chromosomes and sub-genomes of Triticum aestivum...
May 23, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29792069/maternal-nutrition-and-the-developmental-origins-of-osteoporosis-in-offspring-potential-mechanisms-and-clinical-implications
#6
Jia Zheng, Qianyun Feng, Sheng Zheng, Xinhua Xiao
Osteoporosis, the most frequent metabolic disorder of bone, is a complex disease with a multifactorial origin that is influenced by genes and environments. However, the pathogenesis of osteoporosis has not been fully elucidated. The theory of "Developmental Origins of Health and Disease" indicates that early life environment exposure determines the risks of cardiometabolic diseases in adulthood. However, investigations into the effects of maternal nutrition and nutrition exposure during early life on the development of osteoporosis are limited...
January 1, 2018: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29791872/gene-expression-in-cord-blood-links-genetic-risk-for-neurodevelopmental-disorders-with-maternal-psychological-distress-and-adverse-childhood-outcomes
#7
Michael S Breen, Aliza P Wingo, Nastassja Koen, Kirsten A Donald, Mark Nicol, Heather J Zar, Kerry J Ressler, Joseph D Buxbaum, Dan J Stein
Prenatal exposure to maternal stress and depression has been identified as a risk factor for adverse behavioral and neurodevelopmental outcomes in early childhood. However, the molecular mechanisms through which maternal psychopathology shapes offspring development remain poorly understood. We applied transcriptome-wide screens to 149 umbilical cord blood samples from neonates born to mothers with posttraumatic stress disorder (PTSD; n=20), depression (n=31) and PTSD with comorbid depression (n=13), compared to carefully matched trauma exposed controls (n=23) and healthy mothers (n=62)...
May 20, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29791859/combining-ngn2-programming-with-developmental-patterning-generates-human-excitatory-neurons-with-nmdar-mediated-synaptic-transmission
#8
Ralda Nehme, Emanuela Zuccaro, Sulagna Dia Ghosh, Chenchen Li, John L Sherwood, Olli Pietilainen, Lindy E Barrett, Francesco Limone, Kathleen A Worringer, Sravya Kommineni, Ying Zang, Davide Cacchiarelli, Alex Meissner, Rolf Adolfsson, Stephen Haggarty, Jon Madison, Matthias Muller, Paola Arlotta, Zhanyan Fu, Guoping Feng, Kevin Eggan
Transcription factor programming of pluripotent stem cells (PSCs) has emerged as an approach to generate human neurons for disease modeling. However, programming schemes produce a variety of cell types, and those neurons that are made often retain an immature phenotype, which limits their utility in modeling neuronal processes, including synaptic transmission. We report that combining NGN2 programming with SMAD and WNT inhibition generates human patterned induced neurons (hpiNs). Single-cell analyses showed that hpiN cultures contained cells along a developmental continuum, ranging from poorly differentiated neuronal progenitors to well-differentiated, excitatory glutamatergic neurons...
May 22, 2018: Cell Reports
https://www.readbyqxmd.com/read/29791079/overexpression-of-tet3-in-donor-cells-enhances-goat-somatic-cell-nuclear-transfer-efficiency
#9
Chengquan Han, Ruizhi Deng, Tingchao Mao, Yan Luo, Biao Wei, Peng Meng, Lu Zhao, Qing Zhang, Fusheng Quan, Liu Jun, Yong Zhang
Ten-eleven translocation 3 (TET3) mediates active DNA demethylation of paternal genomes during mouse embryonic development. However, the mechanism of DNA demethylation in goat embryos remains unknown. In addition, aberrant DNA methylation reprogramming prevalently occurs in cloned embryos by somatic cell nuclear transfer (SCNT). In this study, we reported that TET3 is a key factor in DNA demethylation in goat pre-implantation embryos. Knockdown of Tet3 hindered DNA demethylation at 2-4-cell stage in goat embryos and decreased Nanog expression in blastocysts...
May 23, 2018: FEBS Journal
https://www.readbyqxmd.com/read/29790956/5-hydroxymethylcytosine-alterations-in-the-human-postmortem-brains-of-autism-spectrum-disorder
#10
Ying Cheng, Ziyi Li, Sasicha Manupipatpong, Li Lin, Xuekun Li, Tianlei Xu, Yong-Hui Jiang, Qiang Shu, Hao Wu, Peng Jin
Autism spectrum disorders (ASD) include a group of syndromes characterized by impaired language, social, and communication skills, in addition to restrictive behaviors or stereotypes. However, with a prevalence of 1.5% in developed countries and high comorbidity rates, no clear underlying mechanism that unifies the heterogeneous phenotypes of ASD exists. 5-hydroxymethylcytosine (5hmC) is highly enriched in the brain and recognized as an essential epigenetic mark in developmental and brain disorders. To explore the role of 5hmC in ASD, we used the genomic DNA isolated from the postmortem cerebellum of both ASD patients and age-matched controls to profile genome-wide distribution of 5hmC...
May 22, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29790918/temporal-and-tissue-specific-variability-of-smn-protein-levels-in-mouse-models-of-spinal-muscular-atrophy
#11
Ewout Jn Groen, Elena Perenthaler, Natalie L Courtney, Crispin Y Jordan, Hannah K Shorrock, Dinja van der Hoorn, Yu-Ting Huang, Lyndsay M Murray, Gabriella Viero, Thomas H Gillingwater
Spinal muscular atrophy (SMA) is a progressive motor neuron disease caused by deleterious variants in SMN1 that lead to a marked decrease in survival motor neuron (SMN) protein expression. Humans have a second SMN gene (SMN2) that is almost identical to SMN1. However, due to alternative splicing the majority of SMN2 mRNA is translated into a truncated, unstable protein that is quickly degraded. Because the presence of SMN2 provides a unique opportunity for therapy development in SMA patients, the mechanisms that regulate SMN2 splicing and mRNA expression have been elucidated in great detail...
May 22, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29790872/genomic-sequencing-identifies-secondary-findings-in-a-cohort-of-parent-study-participants
#12
Michelle L Thompson, Candice R Finnila, Kevin M Bowling, Kyle B Brothers, Matthew B Neu, Michelle D Amaral, Susan M Hiatt, Kelly M East, David E Gray, James M J Lawlor, Whitley V Kelley, Edward J Lose, Carla A Rich, Shirley Simmons, Shawn E Levy, Richard M Myers, Gregory S Barsh, E Martina Bebin, Gregory M Cooper
PurposeClinically relevant secondary variants were identified in parents enrolled with a child with developmental delay and intellectual disability.MethodsExome/genome sequencing and analysis of 789 "unaffected" parents was performed.ResultsPathogenic/likely pathogenic variants were identified in 21 genes within 25 individuals (3.2%), with 11 (1.4%) participants harboring variation in a gene defined as clinically actionable by the American College of Medical Genetics and Genomics. These 25 individuals self-reported either relevant clinical diagnoses (5); relevant family history or symptoms (13); or no relevant family history, symptoms, or clinical diagnoses (7)...
April 12, 2018: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29790814/a-de-novo-mutation-in-prickle1-associated-with-myoclonic-epilepsy-and-autism-spectrum-disorder
#13
Brittany P Todd, Alexander G Bassuk
Homozygous recessive mutations in the PRICKLE1 gene were first described in three consanguineous families with myoclonic epilepsy. Subsequent studies have identified neurological abnormalities in humans and animal models with both heterozygous and homozygous mutations in PRICKLE1 orthologs. We describe a 7-year-old with a novel de novo missense mutation in PRICKLE1 associated with epilepsy, autism spectrum disorder and global developmental delay.
May 23, 2018: Journal of Neurogenetics
https://www.readbyqxmd.com/read/29789310/clerk-is-a-novel-receptor-kinase-required-for-sensing-of-root-active-cle-peptides-in-arabidopsis
#14
Pauline Anne, Amelia Amiguet-Vercher, Benjamin Brandt, Lothar Kalmbach, Niko Geldner, Michael Hothorn, Christian S Hardtke
CLAVATA3/EMBRYO SURROUNDING REGION (CLE) peptides are secreted endogenous plant ligands that are sensed by receptor kinases (RKs) to convey environmental and developmental inputs. Typically, this involves an RK with narrow ligand specificity that signals together with a more promiscuous co-receptor. For most CLEs, biologically relevant (co-)receptors are unknown. The dimer of the receptor-like protein CLAVATA 2 (CLV2) and the pseudokinase CORYNE (CRN) conditions perception of so-called root-active CLE peptides, the exogenous application of which suppresses root growth by preventing protophloem formation in the meristem...
May 22, 2018: Development
https://www.readbyqxmd.com/read/29788979/marcks-and-marcks-like-proteins-in-development-and-regeneration
#15
REVIEW
Mohamed El Amri, Una Fitzgerald, Gerhard Schlosser
BACKGROUND: The Myristoylated Alanine-Rich C-kinase Substrate (MARCKS) and MARCKS-like protein 1 (MARCKSL1) have a wide range of functions, ranging from roles in embryonic development to adult brain plasticity and the inflammatory response. Recently, both proteins have also been identified as important players in regeneration. Upon phosphorylation by protein kinase C (PKC) or calcium-dependent calmodulin-binding, MARCKS and MARCKSL1 translocate from the membrane into the cytosol, modulating cytoskeletal actin dynamics and vesicular trafficking and activating various signal transduction pathways...
May 22, 2018: Journal of Biomedical Science
https://www.readbyqxmd.com/read/29788902/dystonia-deafness-syndrome-caused-by-actb-p-arg183trp-heterozygosity-shows-striatal-dopaminergic-dysfunction-and-response-to-pallidal-stimulation
#16
Inger Marie Skogseid, Oddveig Røsby, Ane Konglund, James P Connelly, Bård Nedregaard, Greg Eigner Jablonski, Nadja Kvernmo, Asbjørg Stray-Pedersen, Joel C Glover
BACKGROUND: Dystonia-deafness syndrome is a well-known clinical entity, with sensorineural deafness typically manifesting earlier than dystonia. ACTB p.Arg183Trp heterozygosity has been reported in six patients to cause combined infant-onset deafness and dystonia manifesting in adolescence or young adulthood. Three of these have received beneficial pallidal stimulation. Brain imaging to assess striatal function has not been reported previously, however. Nor has a comprehensive hypothesis been presented for how the pleiotropic manifestations of this specific beta-actin gene mutation originate developmentally...
May 22, 2018: Journal of Neurodevelopmental Disorders
https://www.readbyqxmd.com/read/29788330/the-evolution-of-gene-expression-underlying-vision-loss-in-cave-animals
#17
David B Stern, Keith A Crandall
Dissecting the evolutionary genetic processes underlying eye reduction and vision loss in obligate cave-dwelling organisms has been a long-standing challenge in evolutionary biology. Independent vision loss events in related subterranean organisms can provide critical insight into these processes as well as into the nature of convergent loss of complex traits. Advances in evolutionary developmental biology have illuminated the significant role of heritable gene expression variation in the evolution of new forms...
May 21, 2018: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/29788325/ancestral-tcdd-exposure-induces-multigenerational-histologic-and-transcriptomic-alterations-in-gonads-of-male-zebrafish
#18
Danielle N Meyer, Bridget B Baker, Tracie R Baker
TCDD (2,3,7,8-tetrachlorodibenzo-p-dioxin), the classic AhR (aryl hydrocarbon receptor) agonist, is a potent environmental toxicant and endocrine-disrupting chemical (EDC) with known developmental toxicity in humans, rodents, and fish. Early life exposure to some EDCs, including TCDD, is linked to the occurrence of adult-onset and multigenerational disease. Previous work exposing juvenile F0 zebrafish (Danio rerio) to 50 ppt (parts per trillion) TCDD during reproductive development has shown male-mediated transgenerational decreases in fertility (F0-F2) and histological and transcriptomic alterations in F0 testes...
May 21, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29788264/mpk-1-erk-pathway-regulates-dna-damage-response-during-development-through-daf-16-foxo
#19
Julien N Bianco, Björn Schumacher
Ultraviolet (UV) induces distorting lesions to the DNA that can lead to stalling of the RNA polymerase II (RNAP II) and that are removed by transcription-coupled nucleotide excision repair (TC-NER). In humans, mutations in the TC-NER genes CSA and CSB lead to severe postnatal developmental defects in Cockayne syndrome patients. In Caenorhabditis elegans, mutations in the TC-NER genes csa-1 and csb-1, lead to developmental growth arrest upon UV treatment. We conducted a genetic suppressor screen in the nematode to identify mutations that could suppress the developmental defects in csb-1 mutants...
May 21, 2018: Nucleic Acids Research
https://www.readbyqxmd.com/read/29787935/functional-characterization-of-the-eugenol-synthase-gene-rcegs1-in-rose
#20
Huijun Yan, Sylvie Baudino, Jean-Claude Caissard, Florence Nicolè, Hao Zhang, Kaixue Tang, Shubin Li, Shugang Lu
The floral volatile compound eugenol is an important constituent in many aromatic plants, being a floral attractant for pollinators as well as having antimicrobial activity. Rose flowers emit eugenol and its derivatives. We recently reported a eugenol synthase gene (RcEGS1) (JQ522949) that was present in petals of R. chinensis cv. Old Blush. RcEGS1 has its highest expression levels in the petals compared to other tissues; it has higher transcript levels at the developmental blooming stage and lower levels at budding and senescence stages...
May 10, 2018: Plant Physiology and Biochemistry: PPB
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